What are two factors that affects the friction factor of a fluid?
What are the factors affecting friction?
- Roughness/smoothness of the sliding object.
- Roughness/smoothness of the surface.
- Shape/design of the object.
- Normal force acting upon the sliding bodies.
- Dry friction is independent of the surface area of a contact.
- Type of friction involved(rolling/sliding)
What are the 3 factors that affect friction?
The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies.
How can fluid friction be reduced what are the factors affecting fluid friction?
Answer: The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water . speed of the object. size of the object.
Which of the following factor does not affect fluid friction?
Explanation: Factors that determine the amount of fluid friction on a solid object include the viscosity of the fluid, the surface texture of the solid object and the shape of the object. By changing any of these factors, you can increase or decrease the amount of resistive force of fluid friction.
What are two things affected by friction?
There are two main factors that will influence the total amount of friction: 1) the roughness of the surfaces (or the “coefficient of friction”) and 2) the force between the two objects.
What are the factors that affect friction Class 8?
The nature of the surface (smoothness or roughness) affects the friction. Smooth surfaces have lesser irregularities. The lesser the irregularities, the lesser the tendency to lock. The lesser the tendency to lock with another object, the lesser the friction (that is tendency to oppose motion).
What are 5 examples of fluid friction?
Fluid Friction
- Air pushing against your hand when you stick it out the window of a car (external)
- Water pushing against a swimmer’s body as they move through it (external)
- The movement of your coffee as you stir it with a spoon (external)
- Sucking water through a straw (internal)
- Submarine moving through water (external)
What are two causes of friction?
Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations.
What factors affect the size of frictional force?
Frictional force depends on the nature of the surface in contact. The rougher the surface, the greater the friction involved. Frictional force is proportional to the pressing force, which is the weight of the body. It is independent of the area of contact.
What is fluid friction and examples?
Fluid friction can be defined as the resistance to relative motion where at least one of the surfaces is in a liquid state. Like for example, the internal fluid friction in honey is more than in water. The value of this type of friction is generally less compared to dry friction.
What is fluid friction give examples?
Submarine moving through water. It is external fluid friction that occurs on it. When you drop any object in a fluid, the extent of its splash depends on its fluid friction. The viscosity of honey is another type of example of fluid friction.
Which is an example of a factor affecting friction?
Factors affecting fluid friction – definition Frictional force on an object in a fluid depends on its speed with respect to fluid and on the shape of the object and nature of the fluid.Hence birds and fishes have special shapes so that they can easily overcome fluid friction.
What causes a surface to increase fluid friction?
Seldom are the surface characteristics changed to purposely increase the fluid friction. A rough surface texture will provide more resistance than a smooth surface in most cases. Even if the surface is smooth, having protrusions such as rivets and screw heads can increase the friction.
How does the viscosity of a gas affect fluid friction?
The Fluid Friction or Viscosity can be affected in following ways:- With increase in temperature, the viscosity of liquid decreases. The Viscosity of all gases increases with increase in temperature, since the viscosity of a gas is directly proportional to the square root of the absolute temperature.
How does the shape of an object affect friction?
Frictional force on an object in a fluid depends on its speed with respect to fluid and on the shape of the object and nature of the fluid.Hence birds and fishes have special shapes so that they can easily overcome fluid friction. All vehicles are designed to have shapes which reduce fluid friction for example shape of aeroplane is spindle.